Added ability to open child pane custom view controller using storyboard id

use IASKViewControllerStoryBoardId specifier to .plist
fixed indentation
updated readme
added ability to remove the back button from the navigation bar - leaving only the 'Done' button.
Merge branch 'child-pane-from-storyboard-id' into testing-pull-from-origin2

Conflicts:
	InAppSettingsKit/Controllers/IASKAppSettingsViewController.m
Merge branch 'hidle-nav-back-button' into testing-pull-from-origin2